<!--
 * @LastEditTime: 2023-09-14 10:21:50
 * @FilePath: \bdcar-net\src\components\DictTag\index.vue
-->
<template>
  <div>
    <template v-for="(item, index) in options">
      <template v-if="values.includes(item.value)">
        <!-- 前驱插槽 -->
        <slot name="pre"></slot>
        <span v-if="item.elTagType == 'default' || item.elTagType == ''" :key="item.value" :index="index"
          :class="item.elTagClass">{{ item.label + " " }}</span>
        <el-tag v-else :disable-transitions="true" :key="item.value + ''" :index="index"
          :type="item.elTagType === 'primary' ? '' : item.elTagType" :class="item.elTagClass">{{ item.label + " "
          }}</el-tag>
      </template>
    </template>
    <template v-if="unmatch && showValue">
      {{ unmatchArray | handleArray }}
    </template>
  </div>
</template>

<script setup>
// 记录未匹配的项
const unmatchArray = ref([]);

const props = defineProps({
  // 数据
  options: {
    type: Array,
    default: null,
  },
  // 当前的值
  value: [Number, String, Array],
  // 当未找到匹配的数据时，显示value
  showValue: {
    type: Boolean,
    default: true,
  },
});

const values = computed(() => {
  if (props.value !== null && typeof props.value !== "undefined") {
    return Array.isArray(props.value) ? props.value : [String(props.value)];
  } else {
    return [];
  }
});

const unmatch = computed(() => {
  unmatchArray.value = [];
  if (props.value !== null && typeof props.value !== "undefined") {
    // 传入值为非数组
    if (!Array.isArray(props.value)) {
      if (props.options.some((v) => v.value == props.value)) return false;
      unmatchArray.value.push(props.value);
      return true;
    }
    // 传入值为Array
    props.value.forEach((item) => {
      if (!props.options.some((v) => v.value == item))
        unmatchArray.value.push(item);
    });
    return true;
  }
  // 没有value不显示
  return false;
});

function handleArray(array) {
  if (array.length === 0) return "";
  return array.reduce((pre, cur) => {
    return pre + " " + cur;
  });
}
</script>

<style scoped>
.el-tag+.el-tag {
  margin-left: 10px;
}
</style>